That statement is axiomatic... it should surprise no one who's looked into the phenomena. However, some recent postings on the T have me thinking about how much we know of the psychology of belief. Borderline schitzophrenic ramblings bring home just how close to madness most of these beliefs sail, and indeed when and where do they cross over the line of what we as a society should accept? People talking about voices in their head don't need derision or condemnation, they need medical advice. At what point does the mild delusion of one become a full blown psychotic episode in another? it's one thing to say you have the key to the realm of the invisible, it's quite another to say you're regularly carrying on conversations with the imaginary inhabitants.
Dawkins used the quote 'delusion in one person we call insanity, in many, religion'.